Robtex

Up: 5.144.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 5.144.36.0/23
Down right: 5.144.38.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.144.36.26	PTR	smtp.secureswissdata.com
5.144.36.30	PTR	mail.gestocigars.ch
5.144.36.81	A+PTR	om.vipri.dk2.secustor.net
5.144.36.82	A	asg.om-klebetechnik.de
5.144.36.105	A	pkipress.com
5.144.36.105	A	reliableid.com
5.144.36.105	A	netprotection.org
5.144.36.117	A	ns1.hackingcorp.ch
5.144.36.121	A	hackingcorp.net
5.144.36.125	A+PTR	smtp.hackingcorp.ch
5.144.37.119	A	www.gpaterno.com
5.144.37.119	A	cache.garl.ch
5.144.37.150	A	mailserver.cscld.net
5.144.37.151	A	swibeco.ch
5.144.37.151	A	www.swibeco.ch
5.144.37.158	A	www.e-mail.ua
5.144.39.13	PTR	ge3-9.cr01.dk2.deltalis.net
5.144.39.22	A+PTR	ge3-5.ar01.dk2.deltalis.net
5.144.39.81	PTR	kvm-gw.arb.ipng.nl
5.144.39.82	A+PTR	charb01.paphosting.net
5.144.39.82	A	mx0.paphosting.net
5.144.39.82	A	sixxs.org
5.144.39.83	PTR	agony.weirdnet.nl
5.144.39.84	A+PTR	pine.okkernoot.net
5.144.39.85	A+PTR	beb.sixxs.net
5.144.39.91	A	chzrh01.paphosting.net
5.144.39.98	A+PTR	vlan901.ar01.dk2.deltalis.net
5.144.39.99	A+PTR	vlan901.ar02.dk2.deltalis.net
5.144.39.102	A+PTR	noc1.dk2.deltalis.net
5.144.39.103	A+PTR	ns1.dk2.deltalis.net
5.144.39.110	A	paphosting.net
5.144.39.110	A	www.ipng.nl
5.144.39.110	A	alp.ipng.nl
5.144.39.114	A+PTR	vlan902.ar01.dk2.deltalis.net
5.144.39.115	A+PTR	vlan902.ar02.dk2.deltalis.net
5.144.39.118	A+PTR	noc2.dk2.deltalis.net
5.144.39.126	A+PTR	console.arb.ipng.nl
5.144.39.126	A	ns.paphosting.eu
5.144.39.241	A+PTR	lo0.cr01.dk2.deltalis.net
5.144.39.242	A+PTR	lo0.cr02.dk2.deltalis.net
5.144.39.243	PTR	lo0.br01.dk2.deltalis.net
5.144.39.243	A	br01.dk2.deltalis.net
5.144.39.244	A+PTR	lo0.br02.dk2.deltalis.net
5.144.39.245	A+PTR	lo0.ar01.dk2.deltalis.net
5.144.39.246	A+PTR	lo0.ar02.dk2.deltalis.net